An early-morning 3.1-magnitude earthquake woke parts of Southern California, the U.S. Geological Survey reported. The about 7 ...

City of Pinole hit by an earthquake at the same time as anti-immigration raids protests were taking place in downtown San ...

A 3.4-magnitude earthquake hit off the Southern California coast, the U.S. Geological Survey reported. The 7-mile deep quake ...

An earthquake with a preliminary magnitude of 3.1 rattled Riverside County on Wednesday. According to the U.S. Geological Survey, the quake struck at 6:21 a.m. The epicenter was roughly 6.1 miles ...

Welcome to your weekly seismic update from across the state, brought to you by the. Over the past week, we recorded about 300 earthquakes. The largest was ...

The earthquake was centered near Skwentna at a depth of 15.2 kilometers (about 9.4 miles). The USGS said it received 449 ...

Some volcanoes erupt with little to no warning, posing serious risks to nearby communities and air traffic. A study of Alaska ...

When volcanoes are preparing to erupt, scientists rely on typical signs to warn people living nearby: deformation of the ...

Tsunamis pose a risk to the entirety of the California coast. But should a major one strike, how bad could it be?

A 3.3-magnitude earthquake shook the San Francisco area in California, the U.S. Geological Survey reported. The 6-mile deep ...

An earthquake with a preliminary magnitude of 3.4 rattled the coastal Los Angeles County area Tuesday. According to the U.S. Geological Survey, the quake struck at 12:15 p.m. The epicenter ...

Seismic symphonies of minor earthquakes may affect grand movements on major faults.